Important Change in River Level Measurements
Beginning in August 2016,
the District will start implementation of the use of a new vertical
datum, the North American Vertical Datum of 1988 (NAVD88). In the past,
the District has used the National Geodetic Vertical Datum of 1929
(NGVD29). The new datum will result in a downward shift of between 0.64
to 0.90 feet depending on location. There is no change in the actual
river level, only the value used to represent the level is different.
The full conversion is expected to be complete by November 1, 2016.
More information about the vertical datum change may be found at http://www.mysuwanneeriver.com/VerticalDatum or by calling the District offices at 386-362-1001 and asking to speak with Tom Mirti, Director of Water Resources.
The mission of the District’s Water Resources Monitoring program is to provide quality-assured water data for use in research, planning, public safety, recreation, and education. The District is committed to documenting our hydrologic conditions for present and future stewards of the unique water resources in our community.
The data sources below are intended for general use. Use the maps for browsing and the inventories for choosing stations based on your needs. The time-series data are presented in Microsoft Excel 97-2003 format. If you can’t open these files, you can download a free Excel viewer. If you need large data sets that include many stations, we can provide, by request, a variety of formats that could reduce your “data-mining” efforts.
Sometimes hydrographers will estimate missing values or make observations about how the data was derived. In these sets you will see a column of quality codes in addition to the time-series data. These codes provide you with background information on data reliability. You can access a list of codes and their definitions.
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